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Finding the Fourth Proportional to 68,835,691.08, 103,223,237.04 and 36,480,012.93

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Solution

The fourth proportional to 68,835,691.08, 103,223,237.04 and 36,480,012.93 is: 54,703,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,835,691.08 : 103,223,237.04 = 36,480,012.93 : x
  2. Step 2: Convert to fraction form
    68,835,691.08/103,223,237.04 = 36,480,012.93/x
  3. Step 3: Cross multiply
    68,835,691.08x = 103,223,237.04 × 36,480,012.93
  4. Step 4: Simplify right side
    68,835,691.08x = 3,765,585,021,895,655
  5. Step 5: Solve for x
    x = 3,765,585,021,895,655/68,835,691.08
  6. Step 6: Final answer
    x = 54,703,961.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.